#31339D#31339D

#31339D is a dark, vivid blue. Relative luminance 0.055; OKLCH L 39.3% C 0.167 H 274.7°. Best body text is #FFFFFF at 10.04:1 contrast (WCAG AA passes).

Color values

HEX	#31339D
RGB	rgb(49, 51, 157)
HSL	hsl(239, 52%, 40%)
HSV	hsv(239, 69%, 62%)
CMYK	cmyk(68.8%, 67.5%, 0%, 38.4%)
CIE-LAB	lab(27.99, 34.28, -57.81)
CIE-LCH	lch(27.99, 67.20, 300.67°)
OKLab	oklab(39.34% 0.0138 -0.1669)
OKLCH	oklch(39.34% 0.167 274.7)
XYZ	xyz(8.5342, 5.4542, 32.4948)
Luminance	0.0546 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31339D #9D9B31

analogous

#31699D #31339D #65319D

triadic

#31339D #9D3133 #339D31

tetradic

#31339D #9D3169 #9D9B31 #319D65

square

#31339D #9D3169 #9D9B31 #319D65

split-complementary

#31339D #9D6531 #699D31

monochromatic

#141540 #22246E #31339D #4648C5 #7576D4

Accessibility & contrast

On white

10.04

#31339D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#31339D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31339D

10.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31339D	#FFFFFF	#000000	##FFFFFF
##31339D	1.00	10.04	2.09	10.04
#FFFFFF	10.04	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0047A0

Deuteranopia (green-blind)

#003D9B

Tritanopia (blue-blind)

#004F63

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #31339d;
/* rgb */ color: rgb(49, 51, 157);
/* oklch */ color: oklch(39.3% 0.167 274.7);

Tailwind

colors: {
  custom: {
    50: '#786bbb',
    500: '#31339d',
    950: '#000000',
  },
}

SCSS

$custom: #31339d;
$custom-light: #786bbb;
$custom-dark: #000000;

JSON

{
  "hex": "#31339d",
  "rgb": {
    "r": 49,
    "g": 51,
    "b": 157
  },
  "hsl": {
    "h": 238.889,
    "s": 52.427,
    "l": 40.392
  },
  "oklch": {
    "l": 0.39339,
    "c": 0.16748,
    "h": 274.7
  },
  "luminance": 0.05455
}

Semantic roles & 50–950 ramp

primary

#31339D

secondary

#BCBA6E

accent

#D94CDC

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#0A0612

muted

#7C7A81

Preview Lab

Preview with #31339D

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →